Fix changelog so prepare_release works
Fix changelog so prepare_release works

Signed-off-by: Pablo Barbáchano <2db534d6341c8fef7c3f3d380b64f9115b9d896d@amazon.com>

firecracker-microvm/firecracker,firecracker-microvm/firecracker,firecracker-microvm/firecracker,firecracker-microvm/firecracker,firecracker-microvm/firecracker